1.Drilling mud pump set with diesel engine 2.electric motor & diesel engine 3.3NB series, F series, PZ series 4. ... F series. Qingzhou Petroleum Machinery Factory Co., Ltd (former Qingzhou water Pump works), built in 1966, taking up 200,000 square meters ... and geological prospecting for well drilling,well workover,cementing,water shut off,water flooding and sending mud, clay, grout and so on ...